Analysis
- max time kernel
147s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240802-en - resource tags
- submitted
09/08/2024, 15:29
General
- Target bd6e1299c9a5e1f71635abb158bd08118bf39e7ad2d631830777cc61f78c364f.exe
- Size 3.5MB
- Sample240809-sxdkbsscrk
- SHA256 bd6e1299c9a5e1f71635abb158bd08118bf39e7ad2d631830777cc61f78c364f
Malware Config
Signatures
- Detect Socks5Systemz Payload 3 IoCs
- Socks5Systemz
Socks5Systemz is a botnet written in C++.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 1 IoCs
- Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\bd6e1299c9a5e1f71635abb158bd08118bf39e7ad2d631830777cc61f78c364f.exe"C:\Users\Admin\AppData\Local\Temp\bd6e1299c9a5e1f71635abb158bd08118bf39e7ad2d631830777cc61f78c364f.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-VSE61.tmp\bd6e1299c9a5e1f71635abb158bd08118bf39e7ad2d631830777cc61f78c364f.tmp"C:\Users\Admin\AppData\Local\Temp\is-VSE61.tmp\bd6e1299c9a5e1f71635abb158bd08118bf39e7ad2d631830777cc61f78c364f.tmp" /SL5="$502AC,3412391,54272,C:\Users\Admin\AppData\Local\Temp\bd6e1299c9a5e1f71635abb158bd08118bf39e7ad2d631830777cc61f78c364f.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\BekkySoft Universal Player\bekkysoftuniversalplayer32.exe"C:\Users\Admin\AppData\Local\BekkySoft Universal Player\bekkysoftuniversalplayer32.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
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C:\Users\Admin\AppData\Local\BekkySoft Universal Player\bekkysoftuniversalplayer32.exe"C:\Users\Admin\AppData\Local\BekkySoft Universal Player\bekkysoftuniversalplayer32.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
bekkysoftuniversalplayer32.exe
_iscrypt.dll
bd6e1299c9a5e1f71635abb158bd08118bf39e7ad2d631830777cc61f78c364f.tmp
memory/1644-52-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/1644-53-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/1644-56-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/2848-13-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/2848-62-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/3732-61-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3732-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/3732-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4612-65-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-81-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-63-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-59-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-67-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-70-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-73-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-76-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-78-0x0000000000B80000-0x0000000000C22000-memory.dmp
memory/4612-60-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-87-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-90-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-93-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-96-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-99-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-102-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-103-0x0000000000B80000-0x0000000000C22000-memory.dmp
memory/4612-104-0x0000000000B80000-0x0000000000C22000-memory.dmp
memory/4612-108-0x0000000000400000-0x00000000007E6000-memory.dmp
memory/4612-111-0x0000000000400000-0x00000000007E6000-memory.dmp